Kicker 4 Inch KM-Series Marine Speaker Bundle 41KM44CW with Black Wake Tower Enclosure Kicker 4 Inch KM-Series Marine Speakers 41KM44CW Kicker KMMTES Enclosures Includes Black & White Grilles Kicker 4 Inch KM-Series Marine Speaker Bundle 41KM44CW with Black Wake Tower Enclosure Kicker 4 Inch KM-Series Marine Speakers 41KM44CWSpeaker Size 4" Design 2-way Tweeter Design Dome Tweeter Composition PEI (Polyetherimide) Woofer Composition Polypropylene Woofer Surround Rubber Peak Power Handling 150 watts RMS Power Handling 50 watts Sensitivity 89 dB Frequency Response 60 - 20000 Hz Impedance (Per Voice Coil) 4 ohms Top-Mount Depth 1-7/8" Speaker Grilles Yes Kicker 4 Inch Tower Enclosure 40KMMTES Kicker KMMTES (1Pair) of 4" Mini Tower Speaker Enclosures For use with Kicker KM-Series coaxials 4" empty enclosure Billet-aluminum pipe-clamps Mini extension arm Durable terminal connectors For single and dual sets of drivers Weather-proof 9-degree axis rotation 7/8"-1-1/4" round tubing 1" square tubing